No. 18 of 29 ·Sega Genesis Emulators

emmd

Windows · Mac · Linux · iPhone

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Freedom report

Two barsScore 5.7

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely4 of 6 device platforms
DocumentedPlans, terms and facts published

emmd is ranked #18 of 29 in Sega genesis emulators on Freedom251. It runs on iOS, Linux, macOS, Windows.

Compared on Sega genesis emulators

Free plan: Yes
Supported platforms: Windows, macOS, Linux, iOS
System scope: genesis_only
Save states: Yes
Shader support: Yes
License: open_source

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The record

Product: emmd is a Sega Genesis (Mega Drive) emulator written in Go and targeting Model 1 hardware.
Desktop library: Its desktop UI provides a game library with ROM scanning, artwork, metadata, save-state management, rewind, fast-forward, shader effects, RetroAchievements integration, and configurable settings.
Emulation: The emulator supports Motorola 68000 and Zilog Z80 CPUs, VDP rendering, YM2612 FM synthesis, and SN76489 PSG audio.
Controllers: It supports two-player 3-button and 6-button controllers.
Save data: It supports battery-backed SRAM and save states, which are checked with CRC32 checksums and ROM CRC matching.
Regions: It supports NTSC and PAL, with automatic detection from the ROM header and a manual region option.
Integration: A LibRetro core is provided for use with LibRetro-compatible frontends.
macOS: The project documents a build target that creates a macOS application bundle with an icon and code signing.
Compatibility limit: The emulator targets officially licensed, released Genesis games and lists unlicensed or homebrew games, prototypes, beta ROMs, and non-controller peripherals as unsupported.
Development requirement: Building the project requires Go 1.25 or later.
Maker: The GitHub account for the repository is named John Schember and lists Florida, USA.
Purpose: emmd is a Sega Genesis (Mega Drive) emulator written in Go and targeting Model 1 hardware.
Desktop features: The desktop UI includes a game library with ROM scanning, artwork, metadata, save state management, rewind, fast-forward, shader effects, RetroAchievements integration, and configurable settings.
Emulated hardware: The emulator supports Motorola 68000 and Zilog Z80 CPUs, VDP rendering, YM2612 FM synthesis, and SN76489 PSG audio.

Where it ranks on Freedom251

Best Sega Genesis Emulators in 2026#18 of 29

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Sources

github.com/user-none/emmd· checked 2 Oct 2026
github.com/user-none· checked 2 Oct 2026